Final answer:
Drywood termite pellets have six longitudinal contours and six convex sides.
Step-by-step explanation:
Drywood termite pellets have six longitudinal contours. In a cross-section of wood, the yearly growth pattern of changing cell characteristics forms annual rings that can be observed as parallel lines in longitudinal sections. The pellets themselves are generally oval or elliptical in shape, with six sides that are convex.